I use the 3-2-1 formula
So part A is the Jack’s Hydroponics(5-12-26)
Part B is the Calcium Nitrate bag(15-0-0)
And any bag of Epsom salt works for the third part.
Per gal mixture is
3.6g of Part A
2.4g of Part B
1.2g of Epsom salt
You have to mix them in order of operations so you take your bucket of water and put in the part A and the Epsom salt then stir til completely dissolved. Once that’s completely dissolved you add in the Part B, stir til dissolved…then ph to 6.0 in hydro or 6.5 in soil.
Same thing every time from seed to harvest. No water breaks, no flushing, just feed to runoff and your golden.